This article is for Outlook Web App, which is used by organizations that manage email servers running Exchange Server 2013 or 2010. If you're using Office 365 or Exchange Server 2016, your email program is Outlook on the web. For help with Outlook on the web, see Get help with Outlook on the web.

In a web browser, sign in to Outlook Web App using the URL provided by the person who manages email for your organization. Enter your user name and password, and then select Sign in.

On the nav bar, choose Settings
> Options.

Under Options, choose Settings > Mail.

Under Email signature, in the text box, type the signature you want to use. Use the formatting mini toolbar to change the appearance of the signature.

If you want your signature to display at the bottom of all outgoing items, including replies and forwards, select Automatically include my signature on messages I send. If you don’t select this option, you can manually add your signature to any message. For details, see Manually add your signature to a new message.